U 优化

src/main/java/cloud/tianai/captcha/generator/AbstractImageCaptchaGenerator.java

@@ -1,5 +1,7 @@
 package cloud.tianai.captcha.generator;
 
+import cloud.tianai.captcha.common.exception.ImageCaptchaException;
+import cloud.tianai.captcha.common.util.CollectionUtils;
 import cloud.tianai.captcha.generator.common.model.dto.GenerateParam;
 import cloud.tianai.captcha.generator.common.model.dto.ImageCaptchaInfo;
 import cloud.tianai.captcha.generator.impl.transform.Base64ImageTransform;
@@ -91,6 +93,24 @@ public abstract class AbstractImageCaptchaGenerator implements ImageCaptchaGener
         return doGenerateCaptchaImage(param);
     }
 
+
+    protected Map<String, Resource> requiredRandomGetTemplate(String type) {
+        Map<String, Resource> templateMap = imageCaptchaResourceManager.randomGetTemplate(type);
+        if (CollectionUtils.isEmpty(templateMap)) {
+            throw new ImageCaptchaException("随机获取模板资源失败， 获取到的资源为空, type=" + type);
+        }
+        return templateMap;
+    }
+
+    protected Resource requiredRandomGetResource(String type) {
+        Resource resource = imageCaptchaResourceManager.randomGetResource(type);
+        if (resource == null) {
+            throw new ImageCaptchaException("随机获取资源失败， 获取到的资源为空, type=" + type);
+        }
+        return resource;
+    }
+
+
     protected InputStream getTemplateFile(Map<String, Resource> templateImages, String imageName) {
         Resource resource = templateImages.get(imageName);
         if (resource == null) {

src/main/java/cloud/tianai/captcha/generator/common/util/CaptchaImageUtils.java

@@ -169,18 +169,18 @@ public class CaptchaImageUtils {
     /**
      * 旋转图片
      *
-     * @param bufferedimage
+     * @param bufferedImage
      * @param degree
      * @return
      */
-    public static BufferedImage rotateImage(final BufferedImage bufferedimage,
+    public static BufferedImage rotateImage(final BufferedImage bufferedImage,
                                             final double degree) {
         // 得到图片宽度。
-        int w = bufferedimage.getWidth();
+        int w = bufferedImage.getWidth();
         // 得到图片高度。
-        int h = bufferedimage.getHeight();
+        int h = bufferedImage.getHeight();
         // 得到图片透明度。
-        int type = bufferedimage.getColorModel().getTransparency();
+        int type = bufferedImage.getColorModel().getTransparency();
         BufferedImage img;// 空的图片。
         Graphics2D graphics2d;// 空的画笔。
         (graphics2d = (img = new BufferedImage(w, h, type))
@@ -190,7 +190,7 @@ public class CaptchaImageUtils {
         // 旋转，degree是整型，度数，比如垂直90度。
         graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);
         // 从bufferedimagecopy图片至img，0,0是img的坐标。
-        graphics2d.drawImage(bufferedimage, 0, 0, null);
+        graphics2d.drawImage(bufferedImage, 0, 0, null);
         graphics2d.dispose();
         // 返回复制好的图片，原图片依然没有变，没有旋转，下次还可以使用。
         return img;

src/main/java/cloud/tianai/captcha/generator/impl/AbstractClickImageCaptchaGenerator.java

@@ -44,7 +44,7 @@ public abstract class AbstractClickImageCaptchaGenerator extends AbstractImageCa
         // 文字点选验证码不需要模板 只需要背景图
         Collection<InputStream> inputStreams = new LinkedList<>();
         try {
-            Resource resourceImage = getImageResourceManager().randomGetResource(param.getType());
+            Resource resourceImage = requiredRandomGetResource(param.getType());
             InputStream resourceInputStream = getImageResourceManager().getResourceInputStream(resourceImage);
             inputStreams.add(resourceInputStream);
             BufferedImage bgImage = CaptchaImageUtils.wrapFile2BufferedImage(resourceInputStream);

src/main/java/cloud/tianai/captcha/generator/impl/StandardConcatImageCaptchaGenerator.java

@@ -55,7 +55,7 @@ public class StandardConcatImageCaptchaGenerator extends AbstractImageCaptchaGen
         // 拼接验证码不需要模板 只需要背景图
         Collection<InputStream> inputStreams = new LinkedList<>();
         try {
-            Resource resourceImage = imageCaptchaResourceManager.randomGetResource(param.getType());
+            Resource resourceImage = requiredRandomGetResource(param.getType());
             InputStream resourceInputStream = imageCaptchaResourceManager.getResourceInputStream(resourceImage);
             inputStreams.add(resourceInputStream);
             BufferedImage bgImage = wrapFile2BufferedImage(resourceInputStream);

src/main/java/cloud/tianai/captcha/generator/impl/StandardRotateImageCaptchaGenerator.java

@@ -62,13 +62,10 @@ public class StandardRotateImageCaptchaGenerator extends AbstractImageCaptchaGen
     @Override
     public ImageCaptchaInfo doGenerateCaptchaImage(GenerateParam param) {
         // 旋转验证码没有混淆
-        Map<String, Resource> templateImages = imageCaptchaResourceManager.randomGetTemplate(param.getType());
-        if (templateImages == null || templateImages.isEmpty()) {
-            return null;
-        }
+        Map<String, Resource> templateImages = requiredRandomGetTemplate(param.getType());
         Collection<InputStream> inputStreams = new LinkedList<>();
         try {
-            Resource resourceImage = imageCaptchaResourceManager.randomGetResource(param.getType());
+            Resource resourceImage = requiredRandomGetResource(param.getType());
             InputStream resourceInputStream = imageCaptchaResourceManager.getResourceInputStream(resourceImage);
             inputStreams.add(resourceInputStream);
             BufferedImage cutBackground = CaptchaImageUtils.wrapFile2BufferedImage(resourceInputStream);

src/main/java/cloud/tianai/captcha/generator/impl/StandardSliderImageCaptchaGenerator.java

@@ -61,13 +61,10 @@ public class StandardSliderImageCaptchaGenerator extends AbstractImageCaptchaGen
     @Override
     public ImageCaptchaInfo doGenerateCaptchaImage(GenerateParam param) {
         Boolean obfuscate = param.getObfuscate();
-        Map<String, Resource> templateImages = imageCaptchaResourceManager.randomGetTemplate(param.getType());
-        if (templateImages == null || templateImages.isEmpty()) {
-            return null;
-        }
+        Map<String, Resource> templateImages = requiredRandomGetTemplate(param.getType());
         Collection<InputStream> inputStreams = new LinkedList<>();
         try {
-            Resource resourceImage = imageCaptchaResourceManager.randomGetResource(param.getType());
+            Resource resourceImage = requiredRandomGetResource(param.getType());
             InputStream resourceInputStream = imageCaptchaResourceManager.getResourceInputStream(resourceImage);
             inputStreams.add(resourceInputStream);
             BufferedImage cutBackground = CaptchaImageUtils.wrapFile2BufferedImage(resourceInputStream);